Low-noise high-low pressure pipeline assembly

Abstract

The utility model discloses a low-noise high-low pressure pipeline assembly which comprises a high-low pressure pipeline assembly body, the high-low pressure pipeline assembly body comprises a high-pressure pipe and a low-pressure pipe, and a fixing mechanism is arranged on one side of the high-pressure pipe and one side of the low-pressure pipe. The fixing mechanism comprises a mounting position, a fixing screw rod, a fixing piece, a fixing hole, a rubber damping connecting piece and a locking nut, the mounting position is arranged on one side of the high-pressure pipe and the low-pressure pipe, the fixing screw rod is fixedly arranged on the surface of the mounting position, the fixing piece is arranged on one side of the mounting position, the fixing hole is formed in the surface of the fixing piece, and the rubber damping connecting piece is arranged in the fixing hole. And the fixing holes are formed in the outer side surfaces of the fixing screw rods in a sleeving manner. According to the utility model, the mounting structure of the high-low pressure pipeline assembly is improved, so that the problems of vibration caused by vibration and loosening and shaking noise caused by vibration can be effectively solved, and the use effect of the high-low pressure pipeline assembly can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of air conditioning pipeline assemblies, and particularly to a low-noise high and low pressure pipeline assembly. Background Art

[0002] The high and low pressure pipeline assembly of an air conditioner is a key component in an automotive air conditioning system. It is mainly composed of a high pressure pipe and a low pressure pipe, and is responsible for the circulation and transmission of the refrigerant.

[0003] The high and low pressure pipeline assembly of an air conditioner is a pipeline system that connects components such as an automotive air conditioning compressor, a condenser, and an evaporator, and is used to achieve a closed circulation of the refrigerant. The high pressure pipe is responsible for transporting the high-temperature and high-pressure refrigerant gas from the compressor to the condenser, while the low pressure pipe is responsible for transporting the low-temperature and low-pressure refrigerant liquid from the evaporator back to the compressor.

[0004] When such a high and low pressure pipeline assembly of a vehicle air conditioner in the prior art is installed in a vehicle, due to the vibration generated during vehicle driving and the vibration generated when the air conditioning compressor operates, such high-frequency vibrations can easily cause the installation screws of the high and low pressure pipeline assembly to become loose. When multiple screws become loose, it will cause the vibration range of the pipeline assembly to become larger, and unnecessary vibration noise is likely to be generated. Therefore, in view of this problem, an improved low-noise high and low pressure pipeline assembly is needed. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a low-noise high and low pressure pipeline assembly to solve the problems raised in the above background art.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A low-noise high and low pressure pipeline assembly, including a high and low pressure pipeline assembly body. The high and low pressure pipeline assembly body includes a high pressure pipe and a low pressure pipe. A fixing mechanism is arranged on one side of the high pressure pipe and the low pressure pipe. The fixing mechanism includes an installation position, a fixing screw, a fixing part, a fixing hole, a rubber shock-absorbing connecting piece, and a locking nut. An installation position is arranged on one side of the high pressure pipe and the low pressure pipe. A fixing screw is fixedly arranged on the surface of the installation position. A fixing part is arranged on one side of the installation position. A fixing hole is opened on the surface of the fixing part. The fixing hole is sleeved on the outer surface of the fixing screw. A rubber shock-absorbing connecting piece is fixedly arranged on the surface of the fixing part. A locking nut is rotatably screwed on the outer surface of the fixing screw through a thread.

[0007] Preferably, a low-noise high-low pressure pipeline assembly includes a high-low pressure pipeline assembly body, the high-low pressure pipeline assembly body includes a high-pressure pipe and a low-pressure pipe, a fixing mechanism is arranged on one side of the high-pressure pipe and the low-pressure pipe, the fixing mechanism includes an installation position, a fixing screw, a fixing piece, a fixing hole, a rubber shock-absorbing connecting piece, and a locking nut. An installation position is arranged on one side of the high-pressure pipe and the low-pressure pipe, a fixing screw is fixedly arranged on the surface of the installation position, a fixing piece is arranged on one side of the installation position, a fixing hole is formed in the surface of the fixing piece, the fixing hole is sleeved on the outer surface of the fixing screw, a rubber shock-absorbing connecting piece is fixedly arranged on the surface of the fixing piece, and a locking nut is movably screwed on the outer surface of the fixing screw through threads.

[0008] Preferably, the card is made of elastic metal material. Through the card made of elastic metal material, when the locking nut is tightened, it can contact the inclined surface of the tooth. At this time, when the locking nut is tightened and rotated, the card will deform correspondingly due to elasticity and will not hinder the tightening of the locking nut. However, when the locking nut is loosened, the card will contact the vertical surface of the tooth. At this time, the tooth can play the role of barbs, making the card unable to deform sufficiently, so that the locking nut is limited and cannot loosen.

[0009] Preferably, an embedding groove is formed on the outer surface of the rubber shock-absorbing connecting piece, and the high-pressure pipe and the low-pressure pipe are movably clamped inside the embedding groove. Through the embedding groove, the high-pressure pipe and the low-pressure pipe can be fixed conveniently and quickly. When fixing, directly force the high-pressure pipe and the low-pressure pipe to be press-fitted into the embedding groove. In this way, the installation is convenient, and at the same time, the installation is not a rigid connection, which can achieve a better buffer and shock absorption effect.

[0010] Preferably, a fixing ring is arranged on the surface of the rubber shock-absorbing connecting piece on one side of the embedding groove, and a limiting groove is formed on the outer surface of the fixing ring. Since the high-pressure pipe and the low-pressure pipe of this device are only fixed by being press-fitted into the embedding groove, the installation is not stable enough. This device can also use a cable tie to wind around the limiting groove on the outer surface of the fixing ring for one circle, so that the high-pressure pipe and the low-pressure pipe can be stably fixed inside the embedding groove. As long as the cable tie is not broken, the high-pressure pipe and the low-pressure pipe cannot fall off from the embedding groove, which can improve the fixing stability of the high-pressure pipe and the low-pressure pipe.

[0011] Preferably, a connecting joint is fixedly arranged at one end of the high-pressure pipe and the low-pressure pipe. Through the connecting joint, it is convenient to connect the high-pressure pipe and the low-pressure pipe with other equipment.

[0012] Compared with the prior art, the beneficial effects of the present utility model are:

[0013] 1. When the lock nut of the present utility model becomes loose, the card will come into contact with the vertical surface of the tooth. At this time, due to the perpendicular angle of the vertical surface, the tooth can play the role of a barbed spike, preventing the card from deforming sufficiently and restricting the lock nut from loosening; in this way, it can effectively prevent the overall installation of the high and low pressure pipeline assembly from becoming loose and generating noise.

[0014] 2. After the fixing piece is installed, the high-pressure pipe and the low-pressure pipe can be conveniently and quickly fixed through the embedding groove. When fixing, directly force the high-pressure pipe and the low-pressure pipe to be press-fitted into the embedding groove. In this way, the installation is convenient, and at the same time, the installation is not a rigid connection, which can achieve a better buffer and shock absorption effect, thereby further reducing the transmission of vibration and further reducing vibration noise. Description of the Drawings

[0015] Figure 1 It is a schematic diagram of the overall structure of a low-noise high and low pressure pipeline assembly of the present utility model;

[0016] Figure 2 It is a side view of a low-noise high and low pressure pipeline assembly of the present utility model;

[0017] Figure 3 It is a disassembly view of the fixing piece in a low-noise high and low pressure pipeline assembly of the present utility model;

[0018] Figure 4 It is a schematic diagram of the overall structure of the fixing hole in a low-noise high and low pressure pipeline assembly of the present utility model;

[0019] Figure 5 It is a schematic diagram of the overall structure of the lock nut in a low-noise high and low pressure pipeline assembly of the present utility model;

[0020] Figure 6 It is a tightened state view of the tooth of the card in a low-noise high and low pressure pipeline assembly of the present utility model;

[0021] Figure 7 It is a low-noise high and low pressure pipeline assembly of the present utility model Figure 4 The enlarged view of part A;

[0022] Figure 8 It is a low-noise high and low pressure pipeline assembly of the present utility model Figure 1 The enlarged view of part B.

[0023] In the figure: 1. High-pressure pipe; 2. Low-pressure pipe; 3. Installation position; 4. Fixed screw; 5. Fixing piece; 6. Fixing hole; 7. Locking nut; 8. Connecting ring; 9. Card; 10. Groove; 11. Tooth; 12. Embedding groove; 13. Fixed ring; 14. Limiting groove; 15. Connecting joint; 16. Rubber shock-absorbing connecting piece. Detailed implementation mode

[0024] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work belong to the protection scope of the present invention.

[0025] Please refer to Figure 1-8 , the present invention provides a technical solution: a low-noise high-low pressure pipe 2-way assembly, including the overall high-low pressure pipeline body, the overall high-low pressure pipeline body includes a high-pressure pipe 1 and a low-pressure pipe 2, and a fixing mechanism is arranged on one side of the high-pressure pipe 1 and the low-pressure pipe 2. The fixing mechanism includes an installation position 3, a fixing screw 4, a fixing piece 5, a fixing hole 6, a rubber shock-absorbing connector 16, and a locking nut 7. An installation position 3 is arranged on one side of the high-pressure pipe 1 and the low-pressure pipe 2. A fixing screw 4 is fixedly arranged on the surface of the installation position 3. A fixing piece 5 is arranged on one side of the installation position 3. A fixing hole 6 is opened on the surface of the fixing piece 5. The fixing hole 6 is sleeved on the outer surface of the fixing screw 4. A rubber shock-absorbing connector 16 is fixedly arranged on the surface of the fixing piece 5. A locking nut 7 is movably screwed on the outer surface of the fixing screw 4 through threads.

[0026] A stabilizing mechanism for preventing the locking nut 7 from loosening is arranged between the locking nut 7 and the fixing piece 5. The stabilizing mechanism includes a connecting ring 8, a card 9, a groove 10, and a tooth 11. A connecting ring 8 is fixedly arranged on the outer surface of the locking nut 7. A plurality of cards 9 are uniformly and fixedly arranged on the inner side wall of the connecting ring 8. A groove 10 is opened on the surface of the fixing piece 5 outside the fixing hole 6. A plurality of teeth 11 are uniformly and fixedly arranged inside the groove 10. Through the stabilizing mechanism, it can not hinder when the locking nut 7 is tightened. However, when the locking nut 7 wants to rotate in the loosening direction under high-frequency vibration, the teeth 11 can form barbs, so that the cards 9 and the teeth 11 are engaged with each other to prevent the locking nut 7 from loosening, thereby preventing the entire high-low pressure pipeline assembly from being loosened and generating noise;

[0027] The card 9 is made of elastic metal material. Through the elastic metal material card 9, when the locking nut 7 is tightened, it can contact the inclined surface of the tooth 11. At this time, when the locking nut 7 is tightened and rotated, the card 9 will deform correspondingly due to elasticity and will not hinder the tightening of the locking nut 7. However, when the locking nut 7 loosens, it will make the card 9 contact the vertical surface of the tooth 11. At this time, the tooth 11 can play the role of a barb, so that the card 9 cannot deform sufficiently, and the locking nut 7 is limited and cannot loosen;

[0028] An embedding groove 12 is provided on the outer surface of the rubber shock-absorbing connecting piece 16. The high-pressure pipe 1 and the low-pressure pipe 2 are movably clamped inside the embedding groove 12. Through the embedding groove 12, the high-pressure pipe 1 and the low-pressure pipe 2 can be fixed conveniently and quickly. When fixing, directly force the high-pressure pipe 1 and the low-pressure pipe 2 to be press-fitted into the embedding groove 12. In this way, the installation is convenient, and at the same time, the installation is not a rigid connection, which can achieve a better buffer and shock-absorbing effect;

[0029] A fixing ring 13 is provided on the surface of the rubber shock-absorbing connecting piece 16 on one side of the embedding groove 12. A limiting groove 14 is provided on the outer surface of the fixing ring 13. Since the high-pressure pipe 1 and the low-pressure pipe 2 of this device are only fixed by being press-fitted into the embedding groove 12, the installation is not stable enough. This device can also use a cable tie to wind around the limiting groove 14 on the outer surface of the fixing ring 13 for one circle. In this way, the high-pressure pipe 1 and the low-pressure pipe 2 can be stably fixed inside the embedding groove 12. As long as the cable tie is not broken, the high-pressure pipe 1 and the low-pressure pipe 2 cannot fall off from the inside of the embedding groove 12, which can improve the fixing stability of the high-pressure pipe 1 and the low-pressure pipe 2;

[0030] A connecting joint 15 is fixedly provided at one end of the high-pressure pipe 1 and the low-pressure pipe 2. Through the connecting joint 15, it is convenient to connect the high-pressure pipe 1 and the low-pressure pipe 2 with other devices.

[0031] Working principle: When using this device, the installation position 3 refers to the position inside the vehicle engine compartment for installing the total body of the high and low pressure pipelines. Subsequently, when installing the total body of the high and low pressure pipelines, align the fixing holes 6 of the fixing piece 5 with the fixing screw 4 and sleeved on it. Then, tighten the locking nut 7 through the thread. When the locking nut 7 is tightened, as the locking nut 7 is tightened, the card 9 and the tooth 11 will gradually approach and contact. If the locking nut 7 rotates in the tightening direction, the rotation direction of the card 9 will continuously contact the inclined surface of the tooth 11. At this time, when the locking nut 7 is tightened and rotated, due to the gentle included angle of the inclined surface of the tooth 11, the card 9 will undergo corresponding deformation due to elasticity and will not hinder the tightening of the locking nut 7. However, when the locking nut 7 is loosened, the card 9 will contact the vertical surface of the tooth 11. At this time, due to the vertical included angle of the vertical surface, the tooth 11 can play the role of a barbed wire, making the card 9 unable to undergo sufficient deformation, so that the locking nut 7 is limited and cannot be loosened; In this way, it can effectively prevent the entire total body of the high and low pressure pipelines from being loosened and generating noise;

[0032] After the fixing piece 5 is installed, the high-pressure pipe 1 and the low-pressure pipe 2 can be fixed conveniently and quickly through the embedding groove 12. When fixing, directly force the high-pressure pipe 1 and the low-pressure pipe 2 to be press-fitted into the embedding groove 12. In this way, the installation is convenient, and at the same time, the installation is not a rigid connection, which can achieve a better buffer and shock-absorbing effect, thereby further reducing the transmission of vibration and further reducing vibration noise.

[0033] It should be noted that, in this document, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or device.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A low-noise high and low pressure pipeline assembly, including the overall body of the high and low pressure pipeline, is characterized in that: The total body of the high and low pressure pipelines includes a high pressure pipe (1) and a low pressure pipe (2). A fixing mechanism is provided on one side of the high pressure pipe (1) and the low pressure pipe (2). The fixing mechanism includes an installation position (3), a fixing screw (4), a fixing piece (5), a fixing hole (6), a rubber shock-absorbing connector (16), and a locking nut (7). An installation position (3) is provided on one side of the high pressure pipe (1) and the low pressure pipe (2). A fixing screw (4) is fixedly arranged on the surface of the installation position (3). A fixing piece (5) is provided on one side of the installation position (3). A fixing hole (6) is formed on the surface of the fixing piece (5). The fixing hole (6) is sleeved on the outer surface of the fixing screw (4). A rubber shock-absorbing connector (16) is fixedly arranged on the surface of the fixing piece (5). A locking nut (7) is movably screwed on the outer surface of the fixing screw (4) through threads.

2. The low-noise high and low pressure pipeline assembly according to claim 1, characterized in that: A stabilizing mechanism for preventing the locking nut (7) from loosening is provided between the locking nut (7) and the fixing piece (5). The stabilizing mechanism includes a connecting ring (8), a card (9), a groove (10), and a tooth (11). A connecting ring (8) is fixedly arranged on the outer surface of the locking nut (7). A plurality of cards (9) are evenly and fixedly arranged on the inner side wall of the connecting ring (8). A groove (10) is formed on the surface of the fixing piece (5) outside the fixing hole (6). A plurality of teeth (11) are evenly and fixedly arranged inside the groove (10).

3. The low-noise high and low pressure pipeline assembly according to claim 2, characterized in that: The card (9) is made of elastic metal material.

4. A low-noise high and low pressure pipeline assembly according to claim 1, characterized in that: An embedding groove (12) is formed on the outer surface of the rubber shock-absorbing connector (16). The high pressure pipe (1) and the low pressure pipe (2) are movably clamped inside the embedding groove (12).

5. A low-noise high and low pressure pipeline assembly according to claim 4, characterized in that: A fixing ring (13) is provided on one side of the embedding groove (12) on the surface of the rubber shock-absorbing connector (16). A limiting groove (14) is formed on the outer surface of the fixing ring (13).

6. The low-noise high and low pressure pipeline assembly according to claim 1, characterized in that: A connecting joint (15) is fixedly arranged at one end of the high pressure pipe (1) and the low pressure pipe (2).

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